Enough is enough. Each of these incidents has an unmistakable racial dimension—all of the victims were black and all or most of arresting officers were white–that threatens the always tense relationships between law enforcement and African Americans. As important, the circumstances of each death are hotly contested, with the police telling one story and witnesses (if any) offering up very different narratives.

Brown’s death in particular is raising major ongoing protests precisely because, contrary to police accounts, witnesses claim that he had his hands up in the air in surrender when he was shot. The result is less trust in police, a situation that raises tensions across the board.

While there is no simple fix to race relations in any part of American life, there is an obvious way to reduce violent law enforcement confrontations while also building trust in cops: Police should be required to use wearable cameras and record their interactions with citizens. These cameras—various models are already on the market—are small and unobtrusive and include safeguards against subsequent manipulation of any recordings.

“Everyone behaves better when they’re on video,” Steve Ward, the president of Vievu, a company that makes wearable gear, told ReasonTV earlier this year. Given that many departments already employ dashboard cameras in police cruisers, this would be a shift in degree, not kind.

“Dash cams only capture about 5% of what a cop does. And I wanted to catch 100% of what a cop does,” explains Ward, who speaks from experience. He used to be a Seattle police officer and his company’s slogan is “Made for cops by cops. Prove the truth.”

According to a year-long study of the Rialto, Calif., police department, the use of “officer worn cameras reduced the rate of use-of-force incidents by 59 percent” and “utilization of the cameras led to an 87.5 percent reduction in complaints” by citizens against cops.

Such results are the reason that the ACLU is in favor of “police body-mounted cameras,” as long as various privacy protections and other concerns are addressed. And it also explains growing support for the policy among elected officials. In the wake of Eric Garner’s chokehold death in July, New York City’s public advocate is pushing a $5 million pilot program in the city’s “most crime-plagued neighborhoods” as a means of restoring trust in the police.

Since 1991, when the beating of Rodney King by the Los Angeles Police Department was captured on tape by an amateur videographer, small, cheap recording devices have become a ubiquitous and effective means by which citizens are able to watch the watchers. In some cases, crowd-sourced footage exonerates the police, while in others it undermines the official narrative.

Over the same period, as the Washington Post’s Radley Balko has documented in Rise of the Warrior Cop, even small-town police departments have become “militarized” in terms of the training they received and the hardware they carry. When the results aren’t tragic, they increase tensions between police and the people they serve and protect.

Mandating that cops wear cameras wouldn’t prevent all tragedies from happening but they would certainly make deaths like those of Brown, Garner and Ferguson less likely. And in difficult cases, body cams would help provide crucial perspective that would build trust in law enforcement across the board.

Witness Tension Between Police and Protestors in Ferguson, Mo.

A man backs away as law enforcement officials close in on him and eventually detain him during protests over the death of Michael Brown, an unarmed black teenager killed by a police officer, in Ferguson, Mo., Aug. 11, 2014.

Whitney Curtis—The New York Times/Redux

Riot police force protestors from the business district into nearby neighborhoods in Ferguson, Mo. on Aug. 11, 2014.

Scott Olson—Getty Images

A child uses a rag to shield his face from tear gas fired by riot police, who used it to force protestors from the business district into nearby neighborhoods in Ferguson, Mo. on Aug. 11, 2014.

Scott Olson—Getty Images

Police officers keep watch from an armored vehicle as they patrol a street in Ferguson, Mo., on Aug. 11, 2014

Mario Anzuoni—Reuters

Police officers ride an armored vehicle as they patrol a street in Ferguson, Mo. on Aug. 11, 2014.

Mario Anzuoni—Reuters

A demonstrator raises his hands in front of of a police officer in Ferguson, Mo. on Aug. 11, 2014.

Mario Anzuoni—Reuters

Riot police lock down a neighborhood in Ferguson, Mo. on Aug. 11, 2014.

Scott Olson—Getty Images

People raise their hands in the middle of the street as riot police move toward their position trying to get them to disperse, in Ferguson, Mo. on Aug. 11, 2014.

Jeff Roberson—AP

Demonstrators raise their hands and chant "hands up, don't shoot" during a protest over the killing of Michael Brown on in Clayton, Mo. on August 12, 2014.

Scott Olson—Getty Images

Civil rights leader Rev. Al Sharpton speaks about the killing of teenager Michael Brown at a press conference held on the steps of the old courthouse in St. Louis on Aug. 12, 2014.

Scott Olson—Getty Images

Police take up position to control demonstrators who were protesting the killing of teenager Michael Brown in Ferguson, Mo. on Aug. 12, 2014.

Scott Olson—Getty Images

Demonstrators protest the killing of teenager Michael Brown in Ferguson, Mo. on August 12, 2014.

Scott Olson—Getty Images

Demonstrators protest the killing of teenager Michael Brown outside Greater St. Marks Family Church in St. Louis on Aug. 12, 2014.

Scott Olson—Getty Images

Police stand watch as demonstrators protest the shooting death of teenager Michael Brown in Ferguson, Mo. on Aug. 13, 2014.

Scott Olson—Getty Images

A demonstrator throws back a tear gas container after tactical officers worked to break up a group of bystanders on Chambers Road near West Florissant in Ferguson on Aug. 13, 2014.

Robert Cohen—St. Louis Post-Dispatch/MCT/Zuma Press

Police officers work their way north on West Florissant Avenue clearing the road of people in Ferguson, Mo. on Aug. 13, 2014.

Robert Cohen—St. Louis Post-Dispatch/AP

Demonstrators protest the shooting death of teenager Michael Brown in Ferguson, Mo. on Aug. 13, 2014.

Scott Olson—Getty Images

People run through smoke in Ferguson, Mo. on Aug. 13, 2014.

Jeff Roberson—AP

A protester takes shelter from smoke billowing around him in Ferguson, Mo. on Aug. 13, 2014.

David Carson—St. Louis Post-Dispatch/AP

An explosive device deployed by police flies in the air as police and protesters clash in Ferguson, Mo., on Aug. 13, 2014

Jeff Roberson—AP

Thousands of demonstrators peacefully march to the spot where Michael Brown was shot and killed by police in Ferguson, Mo. on Aug. 14, 2014.

Jeff Roberson—AP

Demetrus Washington joins other demonstrators protesting the shooting death of teenager Michael Brown in Ferguson, Mo. on Aug. 14, 2014.

Scott Olson—Getty Images

Demonstrators protest outside of Greater St. Marks Family Church in Ferguson, Mo. on Aug. 14, 2014.

Lucas Jackson—Reuters

Protesters light candles as they take part in a peaceful demonstration in Ferguson, Mo. on Aug. 14, 2014.

Lucas Jackson—Reuters

Missouri State Highway Patrol Captain Ron Johnson (L) speaks to protesters as he walks through a peaceful demonstration as communities continue to react to the shooting of Michael Brown in Ferguson, Mo. on Aug. 14, 2014.

Lucas Jackson—Reuters

A young child looks out from a car as demonstrators drive down West Florissant Avenue protesting the shooting and death of Michael Brown in Ferguson, Mo. on Aug. 15, 2014.

Scott Olson—Getty Images

A demonstrator walks through smoke launched by police after a skirmish in Ferguson, Mo. on Aug. 15, 2014

Scott Olson—Getty Images

A demonstrator protests on Florissant Ave in Ferguson, Mo. on Aug. 16, 2014.

Jon Lowenstein—NOOR for TIME

Children walk past police officers during a demonstration in Ferguson, Mo. on Aug. 16, 2014.

Jon Lowenstein—Noor for TIME

Protestors help a man who was injured by tear gas thrown by police after refusing to disperse after the midnight curfew in Ferguson, Mo. on Aug. 17, 2014.

Jon Lowenstein—Noor for TIME

Protestors throw canisters
in Ferguson, Mo. on August 18, 2014.

Jon Lowenstein—Noor for TIME

Protestors demonstrate against the killing of Michael Brown by police officer Darren Wilson in Ferguson, Mo. on August 17, 2014.

Jon Lowenstein—NOOR for TIME

A protestor during demonstrations in Ferguson, Mo. on August 17, 2014.

Jon Lowenstein—Noor for TIME

A protestor retaliates against police in Ferguson, Mo. on Aug. 17, 2014.

Jon Lowenstein—Noor for TIME

A protestor throws a canister of tear gas back at police during demonstrations in Ferguson, Mo. on Aug. 17, 2014.

Jon Lowenstein—Noor for TIME

Police wait to advance after tear gas was used to dispersed a crowd in Ferguson, Mo. on Aug. 17, 2014.

Police wait to advance after tear gas was used to disperse a crowd in Ferguson, Mo. on Aug. 17, 2014.

Charlie Riedel—AP

Tear gas rains down on a woman kneeling in the street with her hands in the air during a demonstration in Ferguson on Aug. 17, 2014. The "hands up, don't shoot" pose became the defining gesture of the protests.

Scott Olson—Getty Images

Protesters attempt to treat a woman who was in a cloud of tear gas thrown by police in Ferguson, Mo. on Aug. 17, 2014.

Lucas Jackson—Reuters

Demonstrators march down West Florissant Ave. during a peaceful march in reaction to the shooting of Michael Brown near Ferguson, Mo. on Aug. 18, 2014.

Lucas Jackson—Reuters

Demonstrators march down West Florissant during a peaceful march in reaction to the shooting of Michael Brown, near Ferguson, Mo. on Aug. 18, 2014.

Lucas Jackson—Reuters

Police tackle a man who was walking down the street in front of McDonald's in Ferguson, Mo. on Aug. 18, 2014.

Laurie Skrivan—St. Louis Post-Dispatch/AP

Law enforcement officers watch on during a protest on West Florissant Avenue in Ferguson, Mo. on Aug. 18, 2014.

Michael B. Thomas—AFP/Getty Images

Demonstrators cover their faces as tear gas fills the air as police fire the gas against an unruly crowd protesting the shooting death of Michael Brown in Ferguson, Mo. on Aug.18, 2014

Joe Raedle—Getty Images

A protestor wearing a gas mask stands with his hands up while facing armed police in Ferguson, Mo. on Aug. 18, 2014.

Abe Van Dyke—Demotix/Corbis

Police fire tear gas in the direction of where bottles were thrown from crowds gathered near the QuikTrip on W. Florissant Avenue in Ferguson, Mo. on Aug. 18, 2014.

David Carson—St Louis Post-Dispatch/Polaris

Demonstrators stand in the middle of West Florissant as they react to tear gas fired by police during ongoing protests in reaction to the shooting of teenager Michael Brown, near Ferguson, Missouri, August 18, 2014.